package com.sky.interceptor;

import com.sky.constant.JwtClaimsConstant;
import com.sky.constant.MessageConstant;
import com.sky.context.BaseContext;
import com.sky.exception.LoginFailedException;
import com.sky.properties.JwtProperties;
import com.sky.utils.JwtUtil;
import io.jsonwebtoken.Claims;
import io.jsonwebtoken.Jwts;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.messaging.handler.HandlerMethod;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Component
@Slf4j
public class JwtTokenUserInterceptor implements HandlerInterceptor {
    @Autowired
    private JwtProperties jwtProperties;
//    @Override
//    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
//        String token = request.getHeader(jwtProperties.getUserTokenName());
//        if(token==null){
//            boolean login = request.getRequestURI().contains("login");
//
//            if(login){
//                return true;
//            }
//            return false;
//        }
//
//        try {
//            Claims itcaleb = JwtUtil.parseJWT(jwtProperties.getUserSecretKey(), token);
//        } catch (Exception e) {
//            throw new LoginFailedException(MessageConstant.LOGIN_FAILED);
//        }
//        return true;
//    }
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
//    //判断当前拦截到的是Controller的方法还是其他资源
//    if (!(handler instanceof HandlerMethod)) {
//        //当前拦截到的不是动态方法，直接放行
//        return true;
//    }

    //1、从请求头中获取令牌
    String token = request.getHeader(jwtProperties.getUserTokenName());

    //2、校验令牌
    try {
        log.info("jwt校验:{}", token);
        Claims claims = JwtUtil.parseJWT(jwtProperties.getUserSecretKey(), token);
        Long userId = Long.valueOf(claims.get(JwtClaimsConstant.USER_ID).toString());
        log.info("当前用户的id：{}", userId);
        BaseContext.setCurrentId(userId);
        //3、通过，放行
        return true;
    } catch (Exception ex) {
        //4、不通过，响应401状态码
        response.setStatus(401);
        return false;
    }
}
}
